Rubidium strontium dating meteorites
Meteorites are among the oldest objects we know about - formed about 4.5 billion years ago. This article describes the principles and methods used to make that determination.There are well-known methods of finding the ages of some natural objects.Answer: The gabbro is, approximately, 1,429 million years old. Using Math to Find the Age of the Earth Here you will use Rubidium-Strontium decay to date a meteorite samples.Assuming that samples, the Earth, and the entire solar system were formed at approximately the same time, this should give us a good approximation to the age of the Earth.The radioactive decay process can be described simply as the transformation of an unstable radioactive atom (called the parent) to a new atom (called the daughter) that may differ in atomic number, atomic mass, or both.The transformation occurs either by loss of particles from, or addition of particles to, the parent nucleus.
For the Rb-Sr system, λ = 1.42 x10 The graph shown below indicates the points plotted, the regression line and its equation.Trees undergo spurts in growth in the spring and summer months while becoming somewhat dormant in the fall and winter months.When a tree is cut down, these periods are exhibited in a cross section of the trunk in the form of rings.These radioactive isotopes and their half-lives can be used as our natural clock, i.e., we can find out how old certain rocks are from this information. Using Math to Find the Age of Rock in Southwest Colorado In this section, we will guide you through the process of finding the age of a sample of gabbro found at Electra Lake, just north of Durango in southwest Colorado.